Nitecore NU25 MCT UL: Ultralight Headlamp for Hiking
By Hyperlite Mountain Gear | Lightweight, Durable Outdoor Gear | Published: 2026-10-21
Category: Product Reviews
See how the 47g Nitecore NU25 MCT UL balances 400 lumens, adjustable color temps, and a red-light mode for ultralight backpacking.
Quick answer
For ultralight backpacking, the Nitecore NU25 MCT UL is a standout headlamp: it weighs just 47g, outputs 400 lumens, and lets you switch between warm, neutral, and cool white light plus red.
Why the NU25 MCT UL fits ultralight trips
At 47 grams, this headlamp won't drag down your base weight, yet it still delivers 400 lumens and a 132-meter throw—enough for most trail and camp tasks.
The dual-core MCT LEDs give you three white-light temperatures, so you can match the beam to the situation: warm for close-up reading, neutral for general use, and cool for spotting trail markers.
The auxiliary red light preserves your night vision and is less likely to attract bugs, making it useful around camp.
Trade-offs to know before you buy
Because it's ultralight, the NU25 MCT UL doesn't have a huge battery. If you need multiple nights of heavy use, plan to recharge via USB or carry a small power bank.
The dual-button interface has a learning curve; practice before your trip so you can adjust modes in the dark without fumbling.
The 132-meter throw is impressive for its weight, but it's not a spotlight. For long-distance night hiking, you might want a more powerful—and heavier—option.
How to use the Nitecore NU25 MCT UL effectively
- Charge it fully before your trip: Plug the headlamp into a USB source and let it charge completely. A full charge ensures you start with maximum battery life. Check the charge status light before you leave—don't assume it's full.
- Learn the dual-button controls in daylight: Practice turning it on, switching between white and red modes, and cycling through brightness levels. This prevents fumbling in the dark. Memorize which button does what so you can operate it by feel.
- Choose the right color temperature for your task: Use warm white for reading or close-up work, neutral for general camp tasks, and cool white for spotting trail markers. Switch to red when you want to preserve night vision or avoid attracting bugs. Test each temperature at home so you know which to select in the field.
- Adjust the beam angle before you start moving: Tilt the headlamp so the beam points where you need it—down for close work, straight ahead for hiking. This avoids wasted light and battery. Re-adjust the angle whenever you change tasks to avoid straining your eyes.
- Manage battery life on multi-day trips: Use lower brightness levels for routine tasks and reserve the highest output for short, critical moments. Carry a small power bank for recharging if you'll be out for several nights. Track your usage and recharge before the battery gets critically low.
Product facts
- Nitecore NU25 MCT UL: Weighs only 47g and outputs 400 lumens with a 132-meter throw. You get a bright, long-range beam without adding noticeable weight to your pack.
Nitecore NU25 MCT UL - Nitecore NU25 MCT UL: Dual-core MCT LEDs offer three white-light temperatures—warm, neutral, and cool—plus auxiliary red lights. You can adapt the beam to any low-light task, from reading in your tent to navigating a dark trail.
